Title :
Time-varying spectrum estimation for a general class of nonstationary processes
Author :
Amin, Moeness G.
Author_Institution :
Villanova University, Villanova, PA, USA
Abstract :
In a general class of nonstationary processes, the autocorrelation may have different time variation rates at different lags. The estimation of each lag in a manner consistent with its nature of nonstationarity yields a reduction in the variance of the spectrum estimate at different frequencies.
Keywords :
Array signal processing; Bismuth; Chebyshev approximation; Design methodology; Equations; Influenza; Notice of Violation; Polynomials; Spectral analysis; Vectors;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1986.13693
